Signalling bubble disable, Software failure in CBTC signalling system resulting in collision between two trains[1] and track circuit failure
Cause
Software-related issue
Statistics
Trains
2 Kawasaki-Sifang C151A trains
Passengers
517[2]
Deaths
0
Injured
38 (including 2 crew)[3]
The Joo Koon rail accident, sometimes referred to as the Joo Koon train collision, was a crash which happened on 15 November 2017, when a C151A train travelling at 16 kilometres per hour (9.9 mph) rear-ended a stationary C151A train at Joo Koon station on the East West MRT line, resulting in 38 injuries.[2][3] The stationary train was in the process of being detrained due to a train fault. Both trains were operating under the recently installed Thales SelTrac CBTC signalling system at the time of incident, and the Minister of Transport Khaw Boon Wan expressed that he was "disturbed" by an initial finding that "critical safety software" was inadvertently removed from the stationary train, possibly due to a malfunctioning signalling circuit, which led to the crash.[4] This incident is the second train collision in Singapore MRT's history, after the Clementi rail accident.
^"LTA statement in full: Software failure behind Joo Koon collision". Land Transport Authority. Today (online). 15 November 2017. Archived from the original on 17 November 2017. Retrieved 17 November 2017.
^ ab"517 passengers on the moving train in Joo Koon collision". Channel NewsAsia. 16 November 2017. Archived from the original on 17 November 2017. Retrieved 17 November 2017.
^ ab"Joo Koon train collision: Total number of injured rises to 38". Channel NewsAsia. 19 November 2017. Archived from the original on 19 November 2017. Retrieved 19 November 2017.
^Chai Chin, Neo. "Joo Koon MRT collision: Faulty train was transiting between old and new signalling systems". Today (newspaper). Archived from the original on 18 November 2017. Retrieved 17 November 2017.
and 15 Related for: Joo Koon rail accident information
of service. Train services resumed the day after the crash. JooKoonrailaccident "JooKoon Collision was second in SMRT history". 15 November 2017. Archived...
April 2020. Retrieved 15 March 2020. Lim, Adrian (16 November 2017). "JooKoon collision: 'Inadvertent removal' of software fix led to collision". Straits...
was sentenced to four weeks jail. JooKoonrailaccident: On 15 November 2017, two C151A trains collided at JooKoon, injuring 28 people, making the second...
a similar signalling system in Singapore, which resulted in the JooKoonrailaccident in 2017. In July 2019, the Electrical and Mechanical Services Department...
MTR Tsuen Wan Line CBTC accident - no fatalities but two MTR staff sent to hospital for observations 2017 JooKoonrailaccident - no fatalities but 38...
operations will be handed over to SMRT Corporation from SBS Transit spanning JooKoon and Boon Lay Bus Interchanges and Soon Lee Bus Depot. 11–13 September –...
metro gets Thales signal systems". @businessline. Retrieved 2018-12-04. "JooKoon train collision: Signalling system provider Thales 'could have done better'...
to 2008 as well as 2010 to 2013). Prior to the opening of Pioneer and JooKoon, there were 94 trains in service at each time. It was increased to 96 in...
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commuters to request on-demand bus services within the Marina-Downtown and JooKoon areas during off-peak hours on weekdays, and those heading from the CBD...
– First SMRT train service disruption east-bound train travelling from JooKoon to Dover. 15 January – The Protection from Harassment Act comes into force...
15 November – A train collision along the East West MRT Line between JooKoon and Gul Circle; this was only the second train collision in the MRT history...
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